新型地层测试仪RCX及其在涠西区块应用

New wireline formation tester RCX and its application in Weixi Block

电缆地层测试自1955年在墨西哥湾首次商业应用以来,经历了简单地层测试、复杂地层测试和模块化地层测试三个阶段。起初仪器一次下井只能测一个压力点、取一个样品,测量精度低,取样时间长,施工风险大。贝克休斯于1995年推出储层特征仪器RCI(英文全称Rservoir Characterization Instrument)具有连续测压、实时光学流体性质分析以及常规流体取样和气体取样等功能,并可根据测试资料计算地层渗透率和目的层流体密度等物理参数,从而能直接、快速、准确判别地层流体性质和帮助进行油藏综合评价。

Since the first commercial application in Mexico Bay in1955,wireline formation testing experiences three periods:simple formation testing,complex formation testing and modularfomiation testing.Atfirst,the instrnmentcanonlymeasureone pressure point and get one sample with the characteristics of low precision,long s^npUng time and high risk inone weUdrilHng.Baker Huges launched the reservoir characterization instrument RCI with the abiUtiesofcontinuous pressure measurement,real time optical fluid property analysis and conventional fluid sampling/gas sampling functions inl995,and thistestercan beusedtocalcdate the physical parameters such as formation permeability and target fluid density according tothetest(^ta.So,itcan cHrecdy,quicMyand accurately determine the nature of formation fluid and help to carry out the comprehensive evaluation of reservoir